yes the ultimate aim of both the questions is same to the retain all old value on jsp.
now i am bit able to do the thing in following way:
as i am not permitted to add anything on old jsp. so i am using an intermidiate jsp. i will forward request to intermediate jsp and will have a page onload event (java script function) to do
it's working fine.
only hting i need to check wheather can i show any new message using a session variable on old jsp.
i am going through it.